package com.leyou.service;

import com.github.tobato.fastdfs.domain.StorePath;
import com.github.tobato.fastdfs.service.FastFileStorageClient;
import com.leyou.controller.UploadController;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Arrays;
import java.util.List;

/**
 * @author HongBo Wang
 * @data 2018/6/26 10:43
 */
@Service
public class UploadService {

    private static final Logger logger = LoggerFactory.getLogger(UploadController.class);

    // 支持的文件类型
    private static final List<String> suffixes = Arrays.asList("image/png", "image/jpeg");

    @Autowired
    FastFileStorageClient storageClient;

    public String upload(MultipartFile file) {
        try {
            // 1、图片信息校验
            // 1)校验文件类型
            String type = file.getContentType();
            if (!suffixes.contains(type)) {
                logger.info("上传失败，文件类型不匹配：{}", type);
                return null;
            }
            // 2)校验图片内容(是图片才能读,更详细还能校验图片宽/高等)
            BufferedImage image = ImageIO.read(file.getInputStream());
            if (image == null) {
                logger.info("上传失败，文件内容不符合要求");
                return null;
            }

            //将图片上传到FastDFs
            String extension = StringUtils.substringAfterLast(file.getOriginalFilename(),".");
            StorePath storePath = this.storageClient.uploadFile(file.getInputStream(),file.getSize(),extension,null);
            //返回完整路径
            return "http://image.leyou.com/"+storePath.getFullPath();

//            // 2、保存图片
//            // 2.1、生成保存目录
//            File dir = new File("D:\\heima30\\upload");
//            if (!dir.exists()) {
//                dir.mkdirs();
//            }
//            // 2.2、保存图片
//            file.transferTo(new File(dir, file.getOriginalFilename()));
//
//            // 2.3、拼接图片地址
//            String url = "http://image.leyou.com/upload/" + file.getOriginalFilename();
//            return url;
        } catch (Exception e) {
            return null;
        }
    }
}
